[Debian 12, Gnome 43.9 using Wayland] Icon not showing in alt-tab nor in toolbar

### Is it a bug? - [x] I know this is an issue with the app, and contacting Mullvad support is not relevant. ### I have checked if others have reported this already - [x] I have checked the issue tracker to see if others have reported similar issues. ### Current Behavior When I close the Mullvad VPN window, there is no longer a toolbar icon at the top right. This makes it difficult to see whether the VPN app is running or not. Opening the app from the app shortcut brings the app up again, showing the connection status. It seems like a GUI issue only with the toolbar. This happened with the latest update of the VPN app (2026.1) Similar issue: https://github.com/mullvad/mullvadvpn-app/issues/2363 ### Expected Behavior When Mullvad VPN window is closed, the toolbar icon is there showing the connection status. ### Steps to Reproduce 1. Install the app 2. Run it 3. Close the window 4. See no toolbar icon ### Failure Logs ```shell ``` ### Operating system version Debian 12 ### Mullvad VPN app version 2026.1 ### Additional Information _No response_